20/11/03 04:32:32 WARN consistentkey.ConsistentKeyLocker: Lock write succeeded but took too long: duration PT0.107S exceeded limit PT0.1S


"priy...@gmail.com" <priyanka...@...>
 

Hi 

i am using Janus with hbase as storage backend. I am getting floowing exception while committing trasaction:

20/11/03 04:32:30 WARN consistentkey.ConsistentKeyLocker: Lock write succeeded but took too long: duration PT0.106S exceeded limit PT0.1S
20/11/03 04:32:30 WARN consistentkey.ConsistentKeyLocker: Lock write succeeded but took too long: duration PT0.113S exceeded limit PT0.1S
20/11/03 04:32:30 WARN consistentkey.ConsistentKeyLocker: Lock write succeeded but took too long: duration PT0.139S exceeded limit PT0.1S
20/11/03 04:32:31 WARN consistentkey.ConsistentKeyLocker: Lock write succeeded but took too long: duration PT0.164S exceeded limit PT0.1S
20/11/03 04:32:31 WARN consistentkey.ConsistentKeyLocker: Lock write succeeded but took too long: duration PT0.178S exceeded limit PT0.1S
20/11/03 04:32:31 WARN consistentkey.ConsistentKeyLocker: Lock write succeeded but took too long: duration PT0.138S exceeded limit PT0.1S
20/11/03 04:32:31 WARN consistentkey.ConsistentKeyLocker: Lock write succeeded but took too long: duration PT0.138S exceeded limit PT0.1S
20/11/03 04:32:31 WARN consistentkey.ConsistentKeyLocker: Lock write succeeded but took too long: duration PT0.147S exceeded limit PT0.1S
20/11/03 04:32:31 WARN consistentkey.ConsistentKeyLocker: Lock write succeeded but took too long: duration PT0.194S exceeded limit PT0.1S
20/11/03 04:32:31 WARN consistentkey.ConsistentKeyLocker: Lock write succeeded but took too long: duration PT0.111S exceeded limit PT0.1S
20/11/03 04:32:31 WARN consistentkey.ConsistentKeyLocker: Lock write succeeded but took too long: duration PT0.134S exceeded limit PT0.1S
20/11/03 04:32:32 WARN consistentkey.ConsistentKeyLocker: Lock write succeeded but took too long: duration PT0.127S exceeded limit PT0.1S
20/11/03 04:32:32 WARN consistentkey.ConsistentKeyLocker: Lock write succeeded but took too long: duration PT0.127S exceeded limit PT0.1S
20/11/03 04:32:32 WARN consistentkey.ConsistentKeyLocker: Lock write succeeded but took too long: duration PT0.214S exceeded limit PT0.1S
20/11/03 04:32:32 WARN consistentkey.ConsistentKeyLocker: Lock write succeeded but took too long: duration PT0.201S exceeded limit PT0.1S
20/11/03 04:32:32 WARN consistentkey.ConsistentKeyLocker: Lock write succeeded but took too long: duration PT0.129S exceeded limit PT0.1S
20/11/03 04:32:32 WARN consistentkey.ConsistentKeyLocker: Lock write succeeded but took too long: duration PT0.107S exceeded limit PT0.1S
20/11/03 04:32:32 ERROR database.StandardJanusGraph: Could not commit transaction [1] due to exception
org.janusgraph.diskstorage.locking.TemporaryLockingException: Temporary locking failure
        at org.janusgraph.diskstorage.locking.AbstractLocker.writeLock(AbstractLocker.java:309)
        at org.janusgraph.diskstorage.locking.consistentkey.ExpectedValueCheckingStore.acquireLock(ExpectedValueCheckingStore.java:103)
        at org.janusgraph.diskstorage.keycolumnvalue.KCVSProxy.acquireLock(KCVSProxy.java:52)
        at org.janusgraph.diskstorage.BackendTransaction.acquireEdgeLock(BackendTransaction.java:237)
        at org.janusgraph.graphdb.database.StandardJanusGraph.prepareCommit(StandardJanusGraph.java:532)
        at org.janusgraph.graphdb.database.StandardJanusGraph.commit(StandardJanusGraph.java:721)
        at org.janusgraph.graphdb.transaction.StandardJanusGraphTx.commit(StandardJanusGraphTx.java:1374)


i have tried increasing the lock wait time and expiry time. But still it gives the same exception:

storage.lock.expiry-time = 600000
storage.lock.wait-time = 50000
What could be the reason? I have not tried increasing number of retries here.

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